Hi,

I am internal corp user and I was recently onboarded to <corpid>@microsoftsupport.com domain which is tied to my <corpid>@microsoft.com account. Now, I don't know exactly how that association works but both those accounts have different password and identity but obviously main corp account is what is used across core apps like Azure, Teams, Office etc. The other one is only used with Dynamics 365. I used teams' web client and I am seeing the below error at very high frequency everyday now. Not sure if it has anything to do with those two identities or there is some clear bug on the teams' side. Whatever it is, you can see the sessionid in the screenshot along with the error message.